User-agent: *
Disallow: /nucleus/
Disallow: /cgi-bin/ 
Disallow: /files/
Disallow: /media/
Disallow: /photos/
Disallow: action.php?
Disallow: /action.php?

User-Agent: gigabot 
Disallow: / 

User-Agent: exava.com
Disallow: /